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Dall’Olio AJ, Matias GDSS, Carreira ACO, de Carvalho HJC, van den Broek Campanelli T, da Silva TS, da Silva MD, Abreu-Silva AL, Miglino MA. Biological Graft as an Innovative Biomaterial for Complex Skin Wound Treatment in Dogs: A Preliminary Report. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6027. [PMID: 36079408 PMCID: PMC9456771 DOI: 10.3390/ma15176027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/25/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Complex wounds in dogs are a recurrent problem in veterinary clinical application and can compromise skin healing; in this sense, tissue bioengineering focused on regenerative medicine can be a great ally. Decellularized and recellularized skin scaffolds are produced to be applied in different and complex canine dermal wounds in the present investigation. Dog skin fragments are immersed in a 0.5% sodium dodecyl sulfate (SDS) solution at room temperature and overnight at 4 °C for 12 days. Decellularized samples are evaluated by histological analysis, scanning electron microscopy (SEM) and gDNA quantification. Some fragments are also recellularized using mesenchymal stem cells (MSCs). Eight adult dogs are divided into three groups for the application of the decellularized (Group I, n = 3) and recellularized scaffolds (Group II, n = 3) on injured areas, and a control group (Group III, n = 2). Wounds are evaluated and measured during healing, and comparisons among the three groups are described. In 30- and 60-day post-grafting, the histopathological analysis of patients from Groups I and II shows similar patterns, tissue architecture preservation, epithelial hyperplasia, hyperkeratosis, edema, and mononuclear inflammatory infiltrate. Perfect integration between scaffolds and wounds, without rejection or contamination, are observed in both treated groups. According to these results, decellularized skin grafts may constitute a potential innovative and functional tool to be adopted as a promising dog cutaneous wound treatment. This is the first study that applies decellularized and recellularized biological skin grafts to improve the healing process in several complex wounds in dogs, demonstrating great potential for regenerative veterinary medicine progress.
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Affiliation(s)
- Adriano Jaskonis Dall’Olio
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | - Gustavo de Sá Schiavo Matias
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | - Ana Claudia Oliveira Carreira
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | | | - Thais van den Broek Campanelli
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | - Thamires Santos da Silva
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | - Mônica Duarte da Silva
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
| | - Ana Lúcia Abreu-Silva
- Department of Veterinary Pathology, State University of Maranhão, Maranhão 65055-150, Brazil
| | - Maria Angélica Miglino
- Surgery Department, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo 05508-270, Brazil
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